http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109880008-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-54 |
| filingDate | 2019-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109880008-B |
| titleOfInvention | M-pentadiene-isoprene copolymer rubber and preparation method thereof |
| abstract | A kind of piperylene-isoprene copolymer rubber and a preparation method thereof belong to the technical field of high polymer materials. The piperylene-isoprene copolymer is prepared by polymerizing monomers containing piperylene and isoprene under the catalysis of a ternary rare earth catalyst, wherein the content of the combined piperylene is 10 to 90 percent in terms of molar percentage content, and the number average molecular weight is 2 multiplied by 10 4 ～40×10 4 (ii) a The cis-1, 4-structure content of the isoprene structural unit in the copolymer is not less than 90 percent, and the cis-1, 4-structure content of the piperylene structural unit is not less than 50 percent. The invention adopts the ternary rare earth catalyst to realize the copolymerization of piperylene and isoprene, obtains a novel piperylene-isoprene copolymer rubber, particularly realizes the direct copolymerization of isoprene and piperylene in petroleum carbon five fraction, does not need to carry out rectification separation with time and energy consumption, can obtain the piperylene-isoprene copolymer rubber by direct polymerization, and has important significance for the effective utilization of high added value of the carbon five fraction and the development of new materials. |
| priorityDate | 2019-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 111.